Do nothing on OnSessionStopped if ARC is being restarted.

components/arc/arc_session_runner.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_ARC_ARC_SESSION_RUNNER_H_
 #define COMPONENTS_ARC_ARC_SESSION_RUNNER_H_
 
 #include <memory>
 
 #include "base/callback.h"
@@ skipping 81 matching lines @@
 
     // Request to stop ARC instance is recieved. Stopping the ARC instance.
     STOPPING,
   };
 
   // Starts to run an ARC instance.
   void StartArcSession();
 
   // ArcSessionObserver:
   void OnSessionReady() override;
-  void OnSessionStopped(StopReason reason) override;
+  void OnSessionStopped(StopReason reason, bool restarting) override;
 
   base::ThreadChecker thread_checker_;
 
   // Observers for the ARC instance state change events.
   base::ObserverList<ArcSessionObserver> observer_list_;
 
   // Whether a client requests to run session or not.
   bool run_requested_ = false;
 
   // Instead of immediately trying to restart the container, give it some time
@@ skipping 13 matching lines @@
 
   // WeakPtrFactory to use callbacks.
   base::WeakPtrFactory<ArcSessionRunner> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcSessionRunner);
 };
 
 }  // namespace arc
 
 #endif  // COMPONENTS_ARC_ARC_SESSION_RUNNER_H_